Diimide nanoclusters play hole trapping and electron injection roles in organic light-emitting devices
We report thermally stable diimide nanoclusters that could potentially replace the conventional thick electron transport layer (ETL) in organic light-emitting devices (OLEDs). Bis-[1,10]phenanthrolin-5-yl-bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic diimide (Bphen-BCDI) was synthesized from the c...
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| Veröffentlicht in: | Nanoscale 2011-03, Vol.3 (3), p.1073-1077 |
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| container_title | Nanoscale |
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| creator | Cho, Gwijeong Lee, Hyena Woo, Sungho Nam, Sungho Kim, Hwajeong Kim, Youngkyoo |
| description | We report thermally stable diimide nanoclusters that could potentially replace the conventional thick electron transport layer (ETL) in organic light-emitting devices (OLEDs). Bis-[1,10]phenanthrolin-5-yl-bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic diimide (Bphen-BCDI) was synthesized from the corresponding dianhydride and amine moieties, and its purified product exhibited a high glass transition temperature (232 °C) and a wide band gap (3.8 eV). The Bphen-BCDI subnanolayers deposited on substrates were found to form organic nanoclusters, not a conventional layer. The OLED made with a subnanolayer of Bphen-BCDI nanoclusters, instead of a conventional ETL, showed greatly improved efficiency (about 2-fold) compared with an OLED without the diimide nanoclusters. The role of the BPhen-BCDI nanoclusters was assigned to hole trapping and electron injection in the present OLED structure. |
| doi_str_mv | 10.1039/c0nr00496k |
| format | Article |
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Bis-[1,10]phenanthrolin-5-yl-bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic diimide (Bphen-BCDI) was synthesized from the corresponding dianhydride and amine moieties, and its purified product exhibited a high glass transition temperature (232 °C) and a wide band gap (3.8 eV). The Bphen-BCDI subnanolayers deposited on substrates were found to form organic nanoclusters, not a conventional layer. The OLED made with a subnanolayer of Bphen-BCDI nanoclusters, instead of a conventional ETL, showed greatly improved efficiency (about 2-fold) compared with an OLED without the diimide nanoclusters. The role of the BPhen-BCDI nanoclusters was assigned to hole trapping and electron injection in the present OLED structure.</description><identifier>ISSN: 2040-3364</identifier><identifier>EISSN: 2040-3372</identifier><identifier>DOI: 10.1039/c0nr00496k</identifier><identifier>PMID: 21170435</identifier><language>eng</language><publisher>England</publisher><subject>Deposition ; Devices ; Dianhydrides ; Diimide ; Electron Transport ; Equipment Design ; Equipment Failure Analysis ; Imides - chemistry ; Lighting - instrumentation ; Materials Testing ; Nanocomposites ; Nanomaterials ; Nanostructure ; Nanostructures - chemistry ; Nanostructures - ultrastructure ; Organic Chemicals - chemistry ; Particle Size ; Semiconductors ; Trapping</subject><ispartof>Nanoscale, 2011-03, Vol.3 (3), p.1073-1077</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c318t-d3e2939da0c99f06e4bca60b59afbd65f1d59a48c20c0ef693499b0a7a1c497c3</citedby><cites>FETCH-LOGICAL-c318t-d3e2939da0c99f06e4bca60b59afbd65f1d59a48c20c0ef693499b0a7a1c497c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21170435$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cho, Gwijeong</creatorcontrib><creatorcontrib>Lee, Hyena</creatorcontrib><creatorcontrib>Woo, Sungho</creatorcontrib><creatorcontrib>Nam, Sungho</creatorcontrib><creatorcontrib>Kim, Hwajeong</creatorcontrib><creatorcontrib>Kim, Youngkyoo</creatorcontrib><title>Diimide nanoclusters play hole trapping and electron injection roles in organic light-emitting devices</title><title>Nanoscale</title><addtitle>Nanoscale</addtitle><description>We report thermally stable diimide nanoclusters that could potentially replace the conventional thick electron transport layer (ETL) in organic light-emitting devices (OLEDs). Bis-[1,10]phenanthrolin-5-yl-bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic diimide (Bphen-BCDI) was synthesized from the corresponding dianhydride and amine moieties, and its purified product exhibited a high glass transition temperature (232 °C) and a wide band gap (3.8 eV). The Bphen-BCDI subnanolayers deposited on substrates were found to form organic nanoclusters, not a conventional layer. The OLED made with a subnanolayer of Bphen-BCDI nanoclusters, instead of a conventional ETL, showed greatly improved efficiency (about 2-fold) compared with an OLED without the diimide nanoclusters. The role of the BPhen-BCDI nanoclusters was assigned to hole trapping and electron injection in the present OLED structure.</description><subject>Deposition</subject><subject>Devices</subject><subject>Dianhydrides</subject><subject>Diimide</subject><subject>Electron Transport</subject><subject>Equipment Design</subject><subject>Equipment Failure Analysis</subject><subject>Imides - chemistry</subject><subject>Lighting - instrumentation</subject><subject>Materials Testing</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Nanostructures - chemistry</subject><subject>Nanostructures - ultrastructure</subject><subject>Organic Chemicals - chemistry</subject><subject>Particle Size</subject><subject>Semiconductors</subject><subject>Trapping</subject><issn>2040-3364</issn><issn>2040-3372</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkd9LwzAQx4Mobk5f_AMkb4JQvTRp2jzK_IlDQfS5pOl1y2zTmnTC_ns7p3v16T4Hn_vC3RFyyuCSAVdXBpwHEEp-7JFxDAIiztN4f8dSjMhRCEsAqbjkh2QUM5aC4MmYVDfWNrZE6rRrTb0KPfpAu1qv6aKtkfZed511c6pdSbFG0_vWUeuWA9mB_CCFoaetn2tnDa3tfNFH2Ni-34yV-GUNhmNyUOk64MlvnZD3u9u36UM0e7l_nF7PIsNZ1kclx1hxVWowSlUgURRGSygSpauilEnFygFFZmIwgNWwjlCqAJ1qZoRKDZ-Q821u59vPFYY-b2wwWNfaYbsKuZI8Sxgk8K-ZJTJNhcySwbzYmsa3IXis8s7bRvt1ziDfPCCfwvPrzwOeBvnsN3ZVNFju1L-L82-siIJ2</recordid><startdate>201103</startdate><enddate>201103</enddate><creator>Cho, Gwijeong</creator><creator>Lee, Hyena</creator><creator>Woo, Sungho</creator><creator>Nam, Sungho</creator><creator>Kim, Hwajeong</creator><creator>Kim, Youngkyoo</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>201103</creationdate><title>Diimide nanoclusters play hole trapping and electron injection roles in organic light-emitting devices</title><author>Cho, Gwijeong ; Lee, Hyena ; Woo, Sungho ; Nam, Sungho ; Kim, Hwajeong ; Kim, Youngkyoo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c318t-d3e2939da0c99f06e4bca60b59afbd65f1d59a48c20c0ef693499b0a7a1c497c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Deposition</topic><topic>Devices</topic><topic>Dianhydrides</topic><topic>Diimide</topic><topic>Electron Transport</topic><topic>Equipment Design</topic><topic>Equipment Failure Analysis</topic><topic>Imides - chemistry</topic><topic>Lighting - instrumentation</topic><topic>Materials Testing</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>Nanostructures - chemistry</topic><topic>Nanostructures - ultrastructure</topic><topic>Organic Chemicals - chemistry</topic><topic>Particle Size</topic><topic>Semiconductors</topic><topic>Trapping</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cho, Gwijeong</creatorcontrib><creatorcontrib>Lee, Hyena</creatorcontrib><creatorcontrib>Woo, Sungho</creatorcontrib><creatorcontrib>Nam, Sungho</creatorcontrib><creatorcontrib>Kim, Hwajeong</creatorcontrib><creatorcontrib>Kim, Youngkyoo</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Nanoscale</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cho, Gwijeong</au><au>Lee, Hyena</au><au>Woo, Sungho</au><au>Nam, Sungho</au><au>Kim, Hwajeong</au><au>Kim, Youngkyoo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Diimide nanoclusters play hole trapping and electron injection roles in organic light-emitting devices</atitle><jtitle>Nanoscale</jtitle><addtitle>Nanoscale</addtitle><date>2011-03</date><risdate>2011</risdate><volume>3</volume><issue>3</issue><spage>1073</spage><epage>1077</epage><pages>1073-1077</pages><issn>2040-3364</issn><eissn>2040-3372</eissn><abstract>We report thermally stable diimide nanoclusters that could potentially replace the conventional thick electron transport layer (ETL) in organic light-emitting devices (OLEDs). Bis-[1,10]phenanthrolin-5-yl-bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic diimide (Bphen-BCDI) was synthesized from the corresponding dianhydride and amine moieties, and its purified product exhibited a high glass transition temperature (232 °C) and a wide band gap (3.8 eV). The Bphen-BCDI subnanolayers deposited on substrates were found to form organic nanoclusters, not a conventional layer. The OLED made with a subnanolayer of Bphen-BCDI nanoclusters, instead of a conventional ETL, showed greatly improved efficiency (about 2-fold) compared with an OLED without the diimide nanoclusters. The role of the BPhen-BCDI nanoclusters was assigned to hole trapping and electron injection in the present OLED structure.</abstract><cop>England</cop><pmid>21170435</pmid><doi>10.1039/c0nr00496k</doi><tpages>5</tpages></addata></record> |
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| source | MEDLINE; Royal Society Of Chemistry Journals; Alma/SFX Local Collection |
| subjects | Deposition Devices Dianhydrides Diimide Electron Transport Equipment Design Equipment Failure Analysis Imides - chemistry Lighting - instrumentation Materials Testing Nanocomposites Nanomaterials Nanostructure Nanostructures - chemistry Nanostructures - ultrastructure Organic Chemicals - chemistry Particle Size Semiconductors Trapping |
| title | Diimide nanoclusters play hole trapping and electron injection roles in organic light-emitting devices |
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